Dry sprinkler
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United States of America Patent
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Dec 11, 2012
Grant Date -
N/A
app pub date -
Jul 18, 2011
filing date -
Jul 19, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dry sprinkler for a fire protection system. The preferred dry sprinkler has a metallic disc annulus positionable within a passageway to skew a central axis of a face of the metallic disc annulus with respect to a longitudinal axis of the dry sprinkler so that an expected minimum flow rate based on a rated discharge coefficient is provided. The dry sprinkler operates to provide an expected flow rate over a range of start pressures. The expected flow rate is based on a K-factor rating. The dry sprinkler provides an acceptable level of fluid flow rate from the expected flow rate based on the K-factor for a range of start pressures.
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